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In pea plants the allele for tallness is dominant. What are the possible genotypes of a tall pea plant?
Wiki User
∙ 6y ago
the tall plant must be heterozygous
Josianne Prohaska
Wiki User
∙ 8y agoThe tall plant must have a gene for short so it can be crossed with a short plant and produce short plants. The cross is Tt x tt = 3 Tt and 1tt. For every three tall plants you should get one short plants.
Wiki User
∙ 9y agoThe thing that must be true for a cross between a tall plant and a short plant to produces any short plants would be that the tall plant would have to be heterozygous. This would mean that fifty percent of the plants would be short.
Wiki User
∙ 8y agoThe short plant must be homozygous recessive i. e. tt as against TT and Tt.
Wiki User
∙ 8y agoThe short plant must be homozygous recessive i. e. tt as against TT and Tt.
Wiki User
∙ 15y agothe tall plant must be heterozygous
Wiki User
∙ 6y agoThe tall plant must be heterozygous.
Wiki User
∙ 6y agoTT or Tt
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How do you write alleles?
It will be the lowercase form of the dominant allele. For example the dominant form for tallness is T, the recessive allele for shortness is t.
What following genotypes will express a dominant trait?
For a dominant trait to be expressed, you either need a RR or an Rr genotype. The other genotype, rr, is recessive only. In genetics, capital letters represent a dominant allele, and lower case letters represent the recessive allele.
When Mendel crossed a true-breeding short plant with a true-breeding tall plant, all the offspring were tall. Which term describes the gene for tallness?
Dominant.
How is it possible to have neither allele dominant?
You have two recessive alleles
What is allele masked by the dominant allele?
The Allele That Is Covered By The Dominant Allele Is The Recessive Allele.
In pea plants the allele for a tallness is dominant what are the possible genotypes of a tall pea plant?
TT or Tt
How do you write alleles?
It will be the lowercase form of the dominant allele. For example the dominant form for tallness is T, the recessive allele for shortness is t.
What gene is masked if it is paired with a dominant gene?
The different forms of a gene are called alleles. In Mendelian genetics, a gene has a dominant allele and a recessive allele. The dominant allele masks the recessive allele if present. So there are two possible dominant genotypes: homozygous dominant, in which both dominant alleles are present; and heterozygous, in which one allele is dominant and the other allele is recessive. The only way to express a recessive trait is to have the homozygous recessive genotype.
What is a dominent allele?
A dominant allele is an allele that can take over a recessive allele, so if you have a dominant allele and a recessive allele, then the offspring will most likely have a dominant allele over a recessive allele. The dominant allele is expressed over the recessive allele.
For sickle-cell disease assume S is the dominant allele and s the recessive allele Which genotypes are possible for offspring of a carrier (Ss) and a person who lacks the sickle-cell allele (SS)?
SS,Ss
Why do the genotypes PPPpand pP all have the same phenotype?
This is because they all have at least one dominant allele, P.
What following genotypes will express a dominant trait?
For a dominant trait to be expressed, you either need a RR or an Rr genotype. The other genotype, rr, is recessive only. In genetics, capital letters represent a dominant allele, and lower case letters represent the recessive allele.
Which is expressed a dominant or recessive allele and which is passed on to the offspring?
The dominant allele will always show over the recessive, and both can be passed onto the offspring. To find out exactly which genotypes the children can have you need to make a punnet square!
When Mendel crossed a true-breeding short plant with a true-breeding tall plant, all the offspring were tall. Which term describes the gene for tallness?
Dominant.
Is Aa and AA a dominant phenotype?
Yes, both Aa and AA genotypes represent the dominant phenotype for a specific trait. The presence of at least one dominant allele (A) will result in the dominant phenotype being expressed.
What has the Tt genotype?
The allele pair Tt is used to represent an individual who has a dominant heterozygous genotype for tallness. The dominant gene but not the recessive gene is physically manifested.
What describes an organism that has the genotypes Bb?
Heterozygous, because it has one dominant allele (B) and one recessive allele (b). An organism with two identical alleles (such as BB or bb) would be homozygous.
